feank welch



(N0` Model.) '2 Sheets-sheet v1.

S. F. WELCH.

ROAD GRADER.

Patented Mar. 27

`(No Model.) I' 2 sheets-sheet 2. y

S. P. WELCH.'

ROAD GMDBR.

No'.-380,068, Patented Mar. 27, 1.888.

M F ,m

UNITED vSiwrn's PATENT OFFICE.

v S. FRANK WELCH, OFMOUNT PLEASANT, IOWA, ASSIGNOR TO THE VESTERN WHEEL SCRAIER COMPANY, OF SAME PLACE.y

RoAD-oRAoi-:a

SPECIFICATION forming part of Letters Patent No. 380,068,6.ated March 27, 1888'. Application filed January 30, 188B'. Serial N 0.1262395. (No model.)

To all whom it may concern:

Be it known that I, S. FRANK WELCH, residing at Mount Pleasant, in the county of Henry and State of Iowa, and a citizen of the The objects of this invention are to providey Vimproved devices by the use of which the draft will be upon the forward end of the scraper-beam without interfering with the required movements of the forward wheels, and to provide improved devices for giving to the scraper a lateral adjustment, which I accomplish as illustrated in the drawings, and hereinafter described.

What I claim as new will be set forth in the claims.

In the drawings, A represents a frame, which is supported upon holsters, as usual.

B is the forward bolster.

C is one ofthe forward wheels. The rear D is the forward axle.

E is a piece of wood secured-to the axle D, as usual.

ais a ring of metal secured to the piece E.

b is another ring of metal connected with the bolster B. y

E is the tongue, which is connected with the axle by the rods c and with the rings a b by means of a strap, d. The forward end of the upper portion of this strap d is connected with a dat bar or rod, e, running back from the evener-bolt. The forward end of the lower part of this strap d is connected with a rod, f, which goes forward to the forward end of the tongue, and at the forward end of this rod f a second pair of horses may be attached.

g is a loop which encircles the rings a b.

when it is desired to change its position.

G G' are two bars of a bifurcated beam having an eye at the front end loosely attached to the loop g. .The rear ends of the bars G G are secured to a flat metal ring, H.

I is another dat metal ring inside of the ring Hand beneath the bars G G. It has a flange at its outside upper edge, which rests loosely are connected with a cross-bar, z', which can be raised and lowered by suitable devices (noty shown) for the purpose of vertically adjusting the scraper-blade.

j is a rack secured to the flat ring I.

lo is a pinion engaging with the rack j. This pinion is on a shaft, l, and can be operated by a hand-wheel, m. By rotating the pinion the scraper-blade can be adjusted diagonally to the main frame.

M is a bar supported by straps n, secured to the main frame. The rear edge of this bar is provided with a rack, o. p

p p are chains, one end of each of which, as shown, is connected with the ring H; but they may be connected vwith the blade-supporting frame in other suitable manner, and the other end of each chain is connected with the bar M.

q is a pinion engaging with the rack o, which pinion is on a shaft, r, and is operated by a hand-wheel, s. By rotating this hand-wheel s the bar M can be moved transversely, thus adjusting the position of the scraper laterally, one position being indicated by full lines and one by dotted lines in Fig. 1.

t is a spring-lock, the lower end of which is designed to enter one of a series of holesin the bar M, for the purpose of holding the scraper in any desired lateral position.

u is a pivoted lever, the forward end of which is connectedwith the lock t, by means of which the lock can be disengaged from the bar M -IOO The complete machine is provided with adjusting devices and other parts (not shown) which form no part of this invention.

The scraper-blade is drawn by the loop g, and the axle D can assume any desired position without interfering with the draft, the strap d moving over the ring b as the axle turns, and the lower` ring, a, at the same time y moving through the loop g.

What I claim as new, and desire to secure by Letters Patent, is

l. In a road-grader mounted on wheels, the combination of a bolster, B, axle D, tongue F, strap d, rings a b, loop g, and a draft-beam for S. FRANK WELCH.

Witnesses:

H. S. TEUsCHER, T. H. BEREMAN. 

